The UK’s first deep geothermal power plant has been generating thermal steam for more than two years, according to the company operating the project near Cornwall, Redruth, which could be part of Britain’s search for alternative energy sources. England’s first hot steam comes from three miles underground.
Geothermal Engineering plans to generate electricity and heat from hot rocks by next year, and plans to build four more power plants in the county with the goal of providing electricity to 45,000 homes by 2026.
Beginning in November 2018, two wells were drilled to a depth of about three miles in the rocks of the Portovan fracture zone, after which water was pumped from a deep well at a temperature of approximately 190 C (374 ° F).
This water is fed by heat transfer to the surface and is pumped back to the ground to capture more heat from the rock in a continuous cycle.
Ryan Lo, director of geothermal engineering, praised the moment the company finally became a force on the site: “We talked about this for many years, but finally we produce the first geothermal steam in the UK, we have steam at the site and the water comes from three miles underground.
Geothermal technology is described as a continuous energy source because it is not affected by the fluctuations of other sustainable energy sources.
The developers hope that the technology used in this facility can be used elsewhere in Cornwall and Devon. These plants have been developed in Incheme and Landau, Germany.
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